NAME

src/pmc/eval.pmc - Dynamic code evaluation

DESCRIPTION

Eval extends Sub to provide eval-like dynamic code evaluation and execution.

Vtable functions

void init()

Initializes a new empty Eval.

void destroy()

Destroy the Eval and its associated bytecode.

void mark()

Mark this Eval.

void *get_pointer()

Returns the address of the associated packfile.

opcode_t *invoke(void *next)

Invokes the first subroutine in the eval code.

STRING *get_string

Get a STRING representing the bytecode for this code segment, suitable for writing to disc and later loading via load_bytecode.

PMC *get_pmc_keyed_int(INTVAL key)

Returns the Sub PMC of the element at index key or PMCNULL.

void freeze(PMC *info)

Archives the evaled code

void thaw(PMC *info)

Unarchives the code.

Methods

get_main()

Return the main sub, if any, null PMC otherwise.

all_subs()

Return an object providing indexed access to all subs in the compilation unit (i.e., self). Provides compability with new packfile_pmc API.

is_initialized(STRING* tag)

Dummy method to emulate is_initialized method of the PackFileView PMC. Returns true if tag is equal to "init", since :init subs are automatically invoked when an EvalPMC is loaded, and false for all other tags.

Auxiliar functions

static PMC* get_sub(PARROT_INTERP, PMC *self, int idx)

Get the idxth Sub PMC from the constants table.

static void mark_ct(PARROT_INTERP, PMC *self)

Mark the bytecode segment pointed to by this Eval for GC.